8 letter words:
referees11,
7 letter words:
reefers10,
referee10,
serener7,
sneerer7,
6 letter words:
enserf9,
freers9,
freres9,
reefer9,
refers9,
reseen6,
serene6,
5 letter words:
feres8,
ferns8,
freer8,
frees8,
frere8,
reefs8,
refer8,
ernes5,
resee5,
serer5,
sneer5,
4 letter words:
fees7,
fens7,
fere7,
fern7,
free7,
reef7,
refs7,
serf7,
erne4,
erns4,
errs4,
esne4,
rees4,
seen4,
seer4,
sene4,
sere4,
3 letter words:
efs6,
fee6,
fen6,
fer6,
fes6,
ref6,
ens3,
ere3,
ern3,
err3,
ers3,
nee3,
ree3,
res3,
see3,
sen3,
ser3,
2 letter words:
ef5,
fe5,
en2,
er2,
es2,
ne2,
re2,